Pump construction



NOV. 8, 1932. A* BQHNNBLUST 1,887,180

PUMP CONSTRUCTION Filed June 2, 1950 bkowuja.

Patented Nov. 8, 1932A UNITED STATESY Limusag y ARNOLD BOHNENBLUST, oFnILEY, xANsAs PUMP ooNs'rnUoTIoN i Application led .Tune 2,

This invention relates to pumps, the primary object of the invention being to provide a pump embodying meansA for forcing liquid into a pressure tank without the use of a stufling box or packing, and at the same time relieve the pump rod extending into the well, of the unusual strain directed to the pump in forcing water from deep wells into pressure tanks.

An important object of the invention is to provide a pump comprising an outer cylinder and an inner cylinder, the inner cylinder having a valve housing formed therein to accommodate a vertically movable valve that acts to regulate the passagerof liquid laterally through the pump. U

With the foregoing and other objects 1n view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and 1n the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

Referring to the drawing:

Figure 1 is a longitudinal sectional view through the pump.

Figure 2 is a sectional view taken at right angles to Figure 1.

Figure 3 is a sectional view taken on line 3--3 of Figure 2.

Figure 4 is a sectional view taken on line 4 4 of Figure 2.

Referring to the drawing in detail, the outer cylinder of the pump is indicated by the reference character 5 and comprises upper and lower sections connected by means of the union or casting 6, that has threaded portions to receive the sections of the outer cylinder.

Positioned within the outer `cylinder 5, is a cylinder 7 that has a threaded upper'extremity `cooperating with threads formed in the union or casting, to support the inner cylinder.

Lateral bores areV formed in the member 6, which bores accommodate the connecting rods 8 that have pivotal connection with'the 1930. vsensu No. 458,958.

BEISSUED coupling 9 that in turn connects with the l pump rod, indicated at 10, the coupling `9 also providing means to which the piston 11 is connected so reciprocatory movement may be imparted to the piston and rod 10, when the links are moved within the cylinder 8.

The upper ends of the links 8, are connected to the ends of the cross piece 12 that is secured to the rod 13. This cross piece l2 is mounted on the rod 14 and is provided with set screws 15 that pass through the cross piece *'12 to secure the cross piece againstfmovement lwith respect to the rod 14.

The piston 11 is of a novel construction and comprises a lower section 16 and an upper section 17, the sections being hollow and provided with openings to allow liquid to pass therethrough.

A valve seat 18 is formed in the piston and receivesthe check valve 19 that operates with each stroke of the piston, to pass a quantity of liquid upwardly through the cylinder. The sections of the piston act to clamp the pump 'washer' 20 in position, so that a fluid-tight fit between the piston and inner cylinder, will be provided. p

As clearly shown by the drawing, the union or casting 6, is hollow and accommodates the valve housing 21 which is in communication with a suitable receiving tank, through the pipe 22.` The reference character 23 designates a valve seat against which the check valve 24 seats to prevent the return of liquid into the inner .pump cylinder.

Extending-into the union or casting 6, is a valve 23 that has a wide portion 24 adapted to normally close the opening 25 formed in the casting 6. The valve 23 has connection with the rod 26, so that by lifting the valve 23, liquid mayy pass through the union or casting, and pass through the pump.

From the foregoing it will be obvious that due to the construction shown and described, liquid will be forced upwardly through the inner cylinder 7, the liquid passing through the pump piston where it enters the valveJ housing 21. It follows that with each stroke of the piston, liquid is forced upwardly and the valve 24 is unseated, allowing the liquid to pass through the pipe 22 to a tank, not

shown. Upon the down stroke of the piston the valve 24 is seated, relieving the pump piston of undue strain incident to the pumping of liquid from deep Wells, into pressure tanks. 5 I claim:

1. In a pump construction, a body portion comprising cylinders, a coupling for connecting the adjacent ends of the cylinders, said coupling having openings to permit liquid to pass vertically therethrough, a pipe extending into the coupling to direct liquid laterally from the body portion, pipes connected with the ends of the body portion, an inner cylinder connected tothe coupling and communicating With the body portion, a

pump rod extending into the pipe at the lower end of the body portion, a valved piston operating in the inner cylinder, and means for connecting the valved p-iston to the pump rod to operate the valved piston as the pump rod is operated.

2. In a pump construction, a body portion, a cylinder supported Within the body portion, a pump rod, a coupling at the upper end of the pump rod, said coupling having lateral extensions, connecting rods connected with the lateral extensions and operating at opposite Sides of the cylinder, means at the upperI 'ends of the connecting rods for moving the connecting rods and pump rod, a valved piston operating in the cylinder, a rod connect-y ing the coupling and valved piston for trans-A mitting movement of the connecting rods tothe valved piston, said valved piston adapted to force liquid inwardly through the cylinder, means :tor directing liquid laterally at the top of the cylinder, and a passageway for permitting liquid to pass upwardly through I the body portion.

In testimony that I claim the foregoing as my own, I have hereto aiiixed my signature.

ARNOLD BOHNENBLUST. 

